delivered the opinion of the Court.
In a long line of cases, this Court has established that due process requires a “clear and certain” remedy for taxes collected in violation of federal law.
Atchison, T. & S. F. R. Co.
v.
O’Connor,
I
For many years, numerous States, including Georgia, exempted from state personal income tax retirement benefits paid by the State, but not retirement benefits paid by the Federal Government (or any other employer). In March 1989, this Court held that such a tax scheme violates the constitutional intergovernmental tax immunity doctrine, which dates back to
McCulloch
v.
Maryland,
In the aftermath of Davis, most of these States, Georgia included, repealed their special tax exemptions for state retirees, but few offered federal retirees any refunds for the unconstitutional taxes they had paid in the years before Davis was decided. Not surprisingly, a great deal of litigation ensued in an effort to force States to provide refunds. The instant suit is part of that litigation.
In April 1990, Reich, a retired federal military officer, sued Georgia in Georgia state court, seeking a refund for the tax years 1980 and after. The principal legal basis for Reich’s *109 lawsuit was Georgia’s tax refund statute, which provides: “A taxpayer shall be refunded any and all taxes or fees which are determined to have been erroneously or illegally assessed and collected from him under the laws of this state, whether paid voluntarily or involuntarily . . . Ga. Code Ann. §48-2-35(a) (Supp. 1994).
The Georgia trial court first decided that, because of § 48-2-35’s statute of limitations, Reich’s refund request was limited to the tax years 1985 and after. Even as to these later tax years, however, the trial court refused to grant a refund, and the Georgia Supreme Court affirmed. See
Reich
v.
Collins,
Reich then petitioned the Georgia Supreme Court for reconsideration of its decision on the grounds that even if the Georgia tax refund statute does not require a refund, federal due process does — due process, that is, as interpreted by
McKesson Corp.
v.
Division of Alcoholic Beverages and Tobacco, Fla. Dept. of Business Regulation,
Reich’s petition for reconsideration in light of
McKesson
was denied. He then petitioned for certiorari. While the petition was pending, we decided
Harper
v.
Virginia Dept. of Taxation,
On remand, the Georgia Supreme Court focused on the portion of
Harper
explaining that, under
McKesson,
a State is free to provide its “clear and certain” remedy in an exclusively predeprivation manner. “[A] meaningful opportunity for taxpayers to withhold contested tax assessments and to challenge their validity in a predeprivation hearing,” we said, is “ ‘a procedural safeguard [against unlawful deprivations] sufficient by itself to satisfy the Due Process Clause.’ ” See
Harper, supra,
at 101, quoting
McKesson, supra,
at 38, n. 21. The court then reviewed Georgia’s predeprivation procedures, found them “ample,” and denied Reich’s refund claim.
Reich
v.
Collins,
Reich again petitioned for certiorari, and we granted the writ,
II
The Georgia Supreme Court is no doubt right that, under
McKesson,
Georgia has the flexibility to maintain an exclusively predeprivation remedial scheme, so long as that
*111
scheme is “clear and certain.” Due process, we should add, also allows the State to maintain an exclusively postdeprivation regime, see,
e. g., Bob Jones Univ.
v.
Simon,
But what a State may not do, and what Georgia did here, is to reconfigure its scheme, unfairly, in mid-course — to “bait and switch,” as some have described it. Specifically, in the mid-1980’s, Georgia held out what plainly appeared to be a “clear and certain” postdeprivation remedy, in the form of its tax refund statute, and then declared, only after Reich and others had paid the disputed taxes, that no such remedy exists. In this regard, the Georgia Supreme Court’s reliance on Georgia’s predeprivation procedures was entirely beside the point (and thus error), because even assuming the constitutional adequacy of these procedures — an issue on which we express no view — no reasonable taxpayer would have thought that they represented, in light of the apparent applicability of the refund statute, the exclusive remedy for unlawful taxes. See generally Rakowski, Harper and Its Aftermath, 1 Fla. Tax Rev. 445, 474 (1993).
Nor can there be any question that, during the 1980’s, prior to
Reich I,
Georgia did appear to hold out a “clear and certain” postdeprivation remedy. To recall, the Georgia refund statute says that the State
“shall”
refund
“any and all
taxes or fees which are determined to have been erroneously or
illegally assessed
and collected from [a taxpayer] under the laws of this state, whether paid voluntarily or involuntarily . . . .” Ga. Code Ann. §48-2-35(a) (Supp. 1994) (emphasis added). In our view, the average taxpayer reading this language would think it obvious that state taxes assessed in violation of federal law are “illegally assessed” taxes. Certainly the United States Court of Appeals for the Eleventh Circuit thought this conclusion was obvious when,
*112
in a 1986 case, it denied federal court relief to taxpayers raising claims similar to Reich’s, in part because it thought Georgia’s refund statute applied to the claims. See
Waldron
v.
Collins,
Respondents, moreover, do not point to any Georgia Supreme Court cases prior to
Reich I
that put any limiting construction on the statute’s sweeping language; indeed, the cases we have found are all entirely consistent with that language’s apparent breadth. See,
e. g., Georgia
v.
Private Truck Council of America, Inc.,
In many ways, then, this case bears a remarkable resemblance to
NAACP
v.
Alabama ex rel. Patterson,
Finally, Georgia contends that Reich had no idea (before Davis) that the taxes he was paying throughout the 1980’s might be unconstitutional. Even assuming Reich had no idea, however, we are not sure we understand the argument. If the argument is that Reich would not have taken advantage of the State’s predeprivation remedies no matter how adequate they were (and thus has no standing to complain of those remedies), the argument is beside the point for the same reason that we said that the Georgia Supreme Court’s reliance on those remedies was beside the point: Reich was entitled to pursue what appeared to be a “clear and certain” postdeprivation remedy, regardless of the State’s predepri-vation remedies. Alternatively, if the argument is that Reich needed to have known of the unconstitutionality of his taxes in order to pursue the State’s postdeprivation remedy, the argument is wrong. It is wrong because Georgia’s refund statute has a relatively lengthy statute of limitations period, and, at least until this case, see
Reich I,
For the reasons stated, the judgment is reversed and the case is remanded for the provision of ‘“meaningful backward-looking relief,’”
Harper,
It is so ordered.
